WESTERN DIGITAL CORP · CUSIP 958102105 · CIK 1009207
As of 2026-06-30, D. E. Shaw & Co., Inc. reported 1.90M WDC (shares), valued at $1.21B, or 0.75% of its reported non-derivative portfolio. Filed 2026-08-14.
Verify history & sources →Shares decreased 29.26%; reported value increased 67.05%, and weight changed +0.18 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.
Left: % · Right: Shares · Independently scaled axes
Exact data and methodology
Axes scale independently; a crossing does not mean equal values. Weight uses each quarter's total reported non-derivative value. Same CUSIP; missing quarters are gaps, not zero. Revised history may include later disclosures.
| Quarter | Weight | Quantity | Source |
|---|---|---|---|
| Q2 2026 | 0.75% | 1,901,787 | SEC filing ↗Filed Aug 14, 2026 |
| Q1 2026 | 0.57% | 2,688,230 | SEC filing ↗Filed May 15, 2026 |
| Q4 2025 | 0.75% | 5,701,318 | SEC filing ↗Filed Feb 17, 2026 |
| Q3 2025 | 0.93% | 9,625,316 | SEC filing ↗Filed Nov 14, 2025 |
| Q2 2025 | 0.19% | 2,907,161 | SEC filing ↗Filed Aug 14, 2025 |
| Q1 2025 | 0.00% | 29,303 | SEC filing ↗Filed May 15, 2025 |
| Q4 2024 | 0.03% | 384,926 | SEC filing ↗Filed Feb 14, 2025 |
| Q3 2024 | 0.06% | 633,813 | SEC filing ↗Filed Nov 14, 2024 |
| Q2 2024 | 0.23% | 2,123,842 | SEC filing ↗Filed Aug 14, 2024 |
| Q1 2024 | 0.22% | 2,532,263 | SEC filing ↗Filed May 15, 2024Amended |
| Q4 2023 | 0.21% | 2,733,336 | SEC filing ↗Filed Feb 14, 2024Amended |
| Q3 2023 | 0.01% | 137,077 | SEC filing ↗Filed Nov 14, 2023 |
History & evidence by quarter
| Quarter | Weight | Quantity | Value | Change explained | Source |
|---|---|---|---|---|---|
| Q3 2023 | 0.01% | 137,077 | $6.25M | The prior quarter is outside the free window. Sign in for the comparison. | SEC filing ↗ Filed Nov 14, 2023 |
| Q4 2023 | 0.21% | 2,733,336 | $143.14M | Shares increased 1894.02%; reported value increased 2188.55%, and weight changed +0.20 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 14, 2024 |
| Q1 2024 | 0.22% | 2,532,263 | $172.80M | Shares decreased 7.36%; reported value increased 20.72%, and weight changed +0.01 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 15, 2024 |
| Q2 2024 | 0.23% | 2,123,842 | $160.92M | Shares decreased 16.13%; reported value decreased 6.87%, and weight changed +0.01 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 14, 2024 |
| Q3 2024 | 0.06% | 633,813 | $43.28M | Shares decreased 70.16%; reported value decreased 73.10%, and weight changed -0.17 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 14, 2024 |
| Q4 2024 | 0.03% | 384,926 | $22.95M | Shares decreased 39.27%; reported value decreased 46.97%, and weight changed -0.03 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 14, 2025 |
| Q1 2025 | 0.00% | 29,303 | $1.18M | Shares decreased 92.39%; reported value decreased 94.84%, and weight changed -0.03 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 15, 2025 |
| Q2 2025 | 0.19% | 2,907,161 | $186.03M | Shares increased 9821.04%; reported value increased 15602.37%, and weight changed +0.19 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 14, 2025 |
| Q3 2025 | 0.93% | 9,625,316 | $1.16B | Shares increased 231.09%; reported value increased 521.20%, and weight changed +0.74 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 14, 2025 |
| Q4 2025 | 0.75% | 5,701,318 | $982.17M | Shares decreased 40.77%; reported value decreased 15.01%, and weight changed -0.18 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 17, 2026 |
| Q1 2026 | 0.57% | 2,688,230 | $727.14M | Shares decreased 52.85%; reported value decreased 25.97%, and weight changed -0.18 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 15, 2026 |
| Q2 2026 | 0.75% | 1,901,787 | $1.21B | Shares decreased 29.26%; reported value increased 67.05%, and weight changed +0.18 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 14, 2026 |
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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.